<div dir="ltr"><div class="gmail_default" style="font-size:large">There can be many instances of a application without being related in any way (parent and children) so niceness won't be inherited. I want like all instances of foo to run with a nice value of -15 without using any wrappers. Those .desktop files must be edited every time I install a new version of Chrome. Once I create a timer, using the section [Crontab] (let's forget the old name of [Timer]) from a .service file, no more editing will be needed. But that's just one example.</div></div><div class="gmail_extra"> <div class="gmail_quote">On Fri, Jul 8, 2016 at 5:39 PM, <<a href="mailto:systemd-devel-request@lists.freedesktop.org" target="_blank">systemd-devel-request@lists.freedesktop.org</a>> wrote: <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Send systemd-devel mailing list submissions to <a href="mailto:systemd-devel@lists.freedesktop.org">systemd-devel@lists.freedesktop.org</a> To subscribe or unsubscribe via the World Wide Web, visit <a href="https://lists.freedesktop.org/mailman/listinfo/systemd-devel" rel="noreferrer" target="_blank">https://lists.freedesktop.org/mailman/listinfo/systemd-devel</a> or, via email, send a message with subject or body 'help' to <a href="mailto:systemd-devel-request@lists.freedesktop.org">systemd-devel-request@lists.freedesktop.org</a> You can reach the person managing the list at <a href="mailto:systemd-devel-owner@lists.freedesktop.org">systemd-devel-owner@lists.freedesktop.org</a> When replying, please edit your Subject line so it is more specific than "Re: Contents of systemd-devel digest..." Today's Topics: 1. Re: Adding a Timer section to .service files (Reindl Harald) 2. Re: Adding a Timer section to .service files (Michał Zegan) 3. Re: Adding a Timer section to .service files (Mantas Mikulėnas) 4. Re: Adding a Timer section to .service files (Tomasz Torcz) 5. Re: Adding a Timer section to .service files (One Infinite Loop) 6. Re: Adding a Timer section to .service files (Reindl Harald) ---------------------------------------------------------------------- Message: 1 Date: Fri, 8 Jul 2016 15:44:22 +0200 From: Reindl Harald <<a href="mailto:h.reindl@thelounge.net">h.reindl@thelounge.net</a>> To: <a href="mailto:systemd-devel@lists.freedesktop.org">systemd-devel@lists.freedesktop.org</a> Subject: Re: [systemd-devel] Adding a Timer section to .service files Message-ID: <<a href="mailto:d70c95a9-f8ac-b1bd-cb25-8348d231ea5e@thelounge.net">d70c95a9-f8ac-b1bd-cb25-8348d231ea5e@thelounge.net</a>> Content-Type: text/plain; charset="utf-8"; Format="flowed" Am 08.07.2016 um 15:35 schrieb One Infinite Loop: > A few usecases: > 1) I want to delete specific files once a day what is the problem? > 2)I want to free RAM using sync command and `echo 3 > > /proc/sys/vm/drop_caches` every 15 seconds besides it's stupid - what is the problem? > 3)I want to make sure certain processes always run using a specific nice > value like -15. I know control groups are invented but it's not the same > thing. what is the problem > I know crontab was invented too but I wanna learn only one syntax: > systemd syntax. how does that change the fact that it would be broken by design to have a timer-section which is implicit active while the unit is disabled which is the reason you have both and why don't you just learn it? > I don't know how to quote and how to reply because it's my first time > when I use a mailing list DAMNED: it has nothing to do with mailing lists and when you don't know what quoting means, even not when compare the mails of others and yours which are only contain your response but no part of the previous communication go and make your homework first by learn to use your mailclient since that is even worser than top-posting with full-quotes *you really* believe somebody is interested enough that he seeks for your previous mails and *guess* to which person you replied at all when there where more then one response since your last mail? -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 181 bytes Desc: OpenPGP digital signature URL: <<a href="https://lists.freedesktop.org/archives/systemd-devel/attachments/20160708/cef8d2df/attachment-0001.sig" rel="noreferrer" target="_blank">https://lists.freedesktop.org/archives/systemd-devel/attachments/20160708/cef8d2df/attachment-0001.sig</a>> ------------------------------ Message: 2 Date: Fri, 8 Jul 2016 15:42:45 +0200 From: Michał Zegan <<a href="mailto:webczat_200@poczta.onet.pl">webczat_200@poczta.onet.pl</a>> To: <a href="mailto:systemd-devel@lists.freedesktop.org">systemd-devel@lists.freedesktop.org</a> Subject: Re: [systemd-devel] Adding a Timer section to .service files Message-ID: <<a href="mailto:24622666-ad6f-3e16-1d4d-4e4e0a708dd2@poczta.onet.pl">24622666-ad6f-3e16-1d4d-4e4e0a708dd2@poczta.onet.pl</a>> Content-Type: text/plain; charset="utf-8" One thing to say: I heard, at least once, that systemd's timer are more complicated because in order to make a timer you need two files instead of creating one, especially in comparison to cron where you need just one line although I always forget the order of fields. I would say a timer section in the service file could be a nice shortcut to create timers for services quickly. W dniu 08.07.2016 o 15:14, Reindl Harald pisze: > > > Am 08.07.2016 um 15:11 schrieb One Infinite Loop: >> There are cases when you don't need .timer files but only a [Timer] >> section. With a well written manual page, systemd users will understand >> why is useful to have a [Timer] section inside a .service file > > FIRST: learn to quote in email > > second: you need to explain the usecases very well > third: a good design don't require read manpages all the time > > > > _______________________________________________ > systemd-devel mailing list > <a href="mailto:systemd-devel@lists.freedesktop.org">systemd-devel@lists.freedesktop.org</a> > <a href="https://lists.freedesktop.org/mailman/listinfo/systemd-devel" rel="noreferrer" target="_blank">https://lists.freedesktop.org/mailman/listinfo/systemd-devel</a> > -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 510 bytes Desc: OpenPGP digital signature URL: <<a href="https://lists.freedesktop.org/archives/systemd-devel/attachments/20160708/3bbdd3fc/attachment-0001.sig" rel="noreferrer" target="_blank">https://lists.freedesktop.org/archives/systemd-devel/attachments/20160708/3bbdd3fc/attachment-0001.sig</a>> ------------------------------ Message: 3 Date: Fri, 8 Jul 2016 17:06:54 +0300 From: Mantas Mikulėnas <<a href="mailto:grawity@gmail.com">grawity@gmail.com</a>> To: One Infinite Loop <<a href="mailto:6pozmo@gmail.com">6pozmo@gmail.com</a>> Cc: Systemd <<a href="mailto:systemd-devel@lists.freedesktop.org">systemd-devel@lists.freedesktop.org</a>> Subject: Re: [systemd-devel] Adding a Timer section to .service files Message-ID: <CAPWNY8WXu6khfo4gkRqJ2gz2-rd2Vqm7tacqFMeuXMrXWA3S=<a href="mailto:A@mail.gmail.com">A@mail.gmail.com</a>> Content-Type: text/plain; charset="utf-8" On Fri, Jul 8, 2016 at 4:35 PM, One Infinite Loop <<a href="mailto:6pozmo@gmail.com">6pozmo@gmail.com</a>> wrote: > A few usecases: > 1) I want to delete specific files once a day > The existing cronjobs and .timer units work well enough for that. Also, systemd even ships with a predefined daily systemd-tmpfiles-clean.timer, see the "r" and "R" types in `man tmpfiles.d`. > 2)I want to free RAM using sync command and `echo 3 > > /proc/sys/vm/drop_caches` every 15 seconds > Why would you do that? There are better ways to make a computer slower. > 3)I want to make sure certain processes always run using a specific nice > value like -15. I know control groups are invented but it's not the same > thing. > That's a service option. It's not related to timers. I don't know how to quote and how to reply because it's my first time when > I use a mailing list. > Surely not the first time using Gmail though. Press 'a' or click "Reply to all". -- Mantas Mikulėnas <<a href="mailto:grawity@gmail.com">grawity@gmail.com</a>> -------------- next part -------------- An HTML attachment was scrubbed... URL: <<a href="https://lists.freedesktop.org/archives/systemd-devel/attachments/20160708/7cb225ce/attachment-0001.html" rel="noreferrer" target="_blank">https://lists.freedesktop.org/archives/systemd-devel/attachments/20160708/7cb225ce/attachment-0001.html</a>> ------------------------------ Message: 4 Date: Fri, 8 Jul 2016 16:12:19 +0200 From: Tomasz Torcz <<a href="mailto:tomek@pipebreaker.pl">tomek@pipebreaker.pl</a>> To: <a href="mailto:systemd-devel@lists.freedesktop.org">systemd-devel@lists.freedesktop.org</a> Subject: Re: [systemd-devel] Adding a Timer section to .service files Message-ID: <<a href="mailto:20160708141218.GA558963@mother.pipebreaker.pl">20160708141218.GA558963@mother.pipebreaker.pl</a>> Content-Type: text/plain; charset=us-ascii Could you please stop breaking threads? Every reply you send starts a new thread, while they all belong to one mail thread. -- Tomasz Torcz "Funeral in the morning, IDE hacking xmpp: <a href="mailto:zdzichubg@chrome.pl">zdzichubg@chrome.pl</a> in the afternoon and evening." - Alan Cox ------------------------------ Message: 5 Date: Fri, 8 Jul 2016 17:21:37 +0300 From: One Infinite Loop <<a href="mailto:6pozmo@gmail.com">6pozmo@gmail.com</a>> To: Mantas Mikulėnas <<a href="mailto:grawity@gmail.com">grawity@gmail.com</a>> Cc: Systemd <<a href="mailto:systemd-devel@lists.freedesktop.org">systemd-devel@lists.freedesktop.org</a>> Subject: Re: [systemd-devel] Adding a Timer section to .service files Message-ID: <CALGQnGDG5i_Fr9PqPBNxwdJ3YtRWsf=<a href="mailto:fM2HjoB4qGe_io3AUTw@mail.gmail.com">fM2HjoB4qGe_io3AUTw@mail.gmail.com</a>> Content-Type: text/plain; charset="utf-8" I want crontab gone and I want to delete specific files once a day and 6 minutes after I opened my computer. My Ubuntu 16.04 runs just fine, thanks for your concern. I want like my browser processes, for example, to run at a nice value of -15. That's why I want to run '/usr/bin/zsh -c '/usr/bin/renice -15 -p $(/usr/bin/pgrep -f /opt/google/chrome/chrome)'` every 15 seconds, for example. On Fri, Jul 8, 2016 at 5:06 PM, Mantas Mikulėnas <<a href="mailto:grawity@gmail.com">grawity@gmail.com</a>> wrote: > On Fri, Jul 8, 2016 at 4:35 PM, One Infinite Loop <<a href="mailto:6pozmo@gmail.com">6pozmo@gmail.com</a>> > wrote: > >> A few usecases: >> 1) I want to delete specific files once a day >> > > The existing cronjobs and .timer units work well enough for that. Also, > systemd even ships with a predefined daily systemd-tmpfiles-clean.timer, > see the "r" and "R" types in `man tmpfiles.d`. > > >> 2)I want to free RAM using sync command and `echo 3 > >> /proc/sys/vm/drop_caches` every 15 seconds >> > > Why would you do that? There are better ways to make a computer slower. > > >> 3)I want to make sure certain processes always run using a specific nice >> value like -15. I know control groups are invented but it's not the same >> thing. >> > > That's a service option. It's not related to timers. > > I don't know how to quote and how to reply because it's my first time when >> I use a mailing list. >> > > Surely not the first time using Gmail though. Press 'a' or click "Reply to > all". > > -- > Mantas Mikulėnas <<a href="mailto:grawity@gmail.com">grawity@gmail.com</a>> > -------------- next part -------------- An HTML attachment was scrubbed... URL: <<a href="https://lists.freedesktop.org/archives/systemd-devel/attachments/20160708/b197e66d/attachment-0001.html" rel="noreferrer" target="_blank">https://lists.freedesktop.org/archives/systemd-devel/attachments/20160708/b197e66d/attachment-0001.html</a>> ------------------------------ Message: 6 Date: Fri, 8 Jul 2016 16:39:32 +0200 From: Reindl Harald <<a href="mailto:h.reindl@thelounge.net">h.reindl@thelounge.net</a>> To: <a href="mailto:systemd-devel@lists.freedesktop.org">systemd-devel@lists.freedesktop.org</a> Subject: Re: [systemd-devel] Adding a Timer section to .service files Message-ID: <<a href="mailto:a10462e0-2353-9be1-bab9-764aa4c1802f@thelounge.net">a10462e0-2353-9be1-bab9-764aa4c1802f@thelounge.net</a>> Content-Type: text/plain; charset="utf-8"; Format="flowed" Am 08.07.2016 um 16:21 schrieb One Infinite Loop: > I want like my browser processes, for example, to run at a nice value of > -15. That's why I want to run '/usr/bin/zsh -c '/usr/bin/renice -15 -p > $(/usr/bin/pgrep -f /opt/google/chrome/chrome)'` every 15 seconds, for > example well, nice -15 means nearly real time and is for a browser similar *censored* than `echo 3 > /proc/sys/vm/drop_caches` every 15 minutes because under load combined with a hanging javascript your computer will no longer respond to anything for a real usecase not allowing your browser to eat all ressources when you visit a buggy website "nice -n 15" in the .desktop file which starts your browser would be the way to go think about a better example - don't get me wrong but that and "i don't know how to reply" togehter don't qualify you for any technical proposal -------------- next part -------------- A non-text attachment was scrubbed... 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